This policy of clear cut information, and an interview before classes, is good for the teacher and the student. From the start, you are developing the student / teacher relationship and creating a rapport with new students.
Therefore, please take time to develop a business plan with goals and estimated time frames. Unfortunately, I have seen too many Yoga studios open with a "one month plan." Can you imagine opening an ashram without a telephone, getting caught up in zoning board complications, or just hoping for the best? One poorly organized studio makes all Yoga teachers look bad, and leaves the public thinking every Yoga studio is like that.
Behavior toward neighboring Yoga schools, teachers, and their students, should be cordial. Like the old saying goes, "If you do not have anything good to say, do not say anything at all." When we speak of other Yoga instructors, or former teachers, in a hostile manner, what do we teach our students?